I ought to rechromatograph you ought to rechromatograph she ought to rechromatograph we ought to rechromatograph you ought to rechromatograph they ought to rechromatograph
V-ing form
I ought to be rechromatographing you ought to be rechromatographing she ought to be rechromatographing we ought to be rechromatographing you ought to be rechromatographing they ought to be rechromatographing
Perfect
I ought to have rechromatographed you ought to have rechromatographed she ought to have rechromatographed we ought to have rechromatographed you ought to have rechromatographed they ought to have rechromatographed
V-ing perfect
I ought to have been rechromatographing you ought to have been rechromatographing she ought to have been rechromatographing we ought to have been rechromatographing you ought to have been rechromatographing they ought to have been rechromatographing
Negation
Simple form
I oughtn't to rechromatograph you oughtn't to rechromatograph she oughtn't to rechromatograph we oughtn't to rechromatograph you oughtn't to rechromatograph they oughtn't to rechromatograph
V-ing form
I oughtn't to be rechromatographing you oughtn't to be rechromatographing she oughtn't to be rechromatographing we oughtn't to be rechromatographing you oughtn't to be rechromatographing they oughtn't to be rechromatographing
Perfect
I oughtn't to have rechromatographed you oughtn't to have rechromatographed she oughtn't to have rechromatographed we oughtn't to have rechromatographed you oughtn't to have rechromatographed they oughtn't to have rechromatographed
V-ing perfect
I oughtn't to have been rechromatographing you oughtn't to have been rechromatographing she oughtn't to have been rechromatographing we oughtn't to have been rechromatographing you oughtn't to have been rechromatographing they oughtn't to have been rechromatographing
Interrogative form
Simple form
ought to I rechromatograph? ought to you rechromatograph? ought to she rechromatograph? ought to we rechromatograph? ought to you rechromatograph? ought to they rechromatograph?
V-ing form
ought to I be rechromatographing? ought to you be rechromatographing? ought to she be rechromatographing? ought to we be rechromatographing? ought to you be rechromatographing? ought to they be rechromatographing?
Perfect
ought to I have rechromatographed? ought to you have rechromatographed? ought to she have rechromatographed? ought to we have rechromatographed? ought to you have rechromatographed? ought to they have rechromatographed?
V-ing perfect
ought to I have been rechromatographing? ought to you have been rechromatographing? ought to she have been rechromatographing? ought to we have been rechromatographing? ought to you have been rechromatographing? ought to they have been rechromatographing?
Interro-negative form
Simple form
oughtn't I to rechromatograph? oughtn't you to rechromatograph? oughtn't she to rechromatograph? oughtn't we to rechromatograph? oughtn't you to rechromatograph? oughtn't they to rechromatograph?
V-ing form
oughtn't I to be rechromatographing? oughtn't you to be rechromatographing? oughtn't she to be rechromatographing? oughtn't we to be rechromatographing? oughtn't you to be rechromatographing? oughtn't they to be rechromatographing?
Perfect
oughtn't I to have rechromatographed? oughtn't you to have rechromatographed? oughtn't she to have rechromatographed? oughtn't we to have rechromatographed? oughtn't you to have rechromatographed? oughtn't they to have rechromatographed?
V-ing perfect
oughtn't I to have been rechromatographing? oughtn't you to have been rechromatographing? oughtn't she to have been rechromatographing? oughtn't we to have been rechromatographing? oughtn't you to have been rechromatographing? oughtn't they to have been rechromatographing?